[PATCH] D12345: [Reassociate]: Add intermediate subtract instructions created while negating to be redone later for more reassociate opportunities

[Aditya Nandakumar via llvm-commits]

aditya_nandakumar added a comment.

Thanks Daniel. I definitely missed that conversation on the mailing list and I see the drawbacks of the local reassociate. I'll try seeing what little needs to be done to converge in the couple cases that I have (one above) and a superficial look at why the second reassociate improves codegen.
Is there already an implementation for global reassociate?


Repository:
  rL LLVM

http://reviews.llvm.org/D12345